Wall-tie.



PATENTED JAN. 6, 1903.

R. G. TAF'I'. WALL TIE.

APPLIOATIOH'PILBD FEB. 25, 1902.

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ROBERT C. TAFT, OF TOPEKA, KANSAS.

WALL-TIE.

SPECIFICATION forming part of Letters Patent No. 717,638, dated January 6, 1903.

I Application filed Februaryfifi, 1902- Serial No. 95,631. (No model.)

To aZZ whom it may concern:

Be it known that I, ROBERT C. TAFT, a citizen of the United States, residing at Topeka, in the county of Shawnee and State of Kansas, have invented new and useful Improvements in Wall-Ties, of which the following is a specification.

My invention pertains to that class of devices known as wall-ties and used in building construction for bonding or tying together the different sections of walls composed of brick, stone, or other similar material in which the units of the material are united by cement or mortar joints to form the aggregate mass of the wall; and the object of my invention is to supply means whereby various forms of walls and walls of various kinds of material may be bonded or have their vertical sections more'securely tied together than has heretofore been possible by the usual methods of bonding. I attain this object by the use of flat strips or plates of any suitable metal, preferably galvanized iron or steel, such metals offering great strength, low cost, easy manipulation under the forming-dies, and by reason of the galvanizing satisfactory immunity from oxidation or rusting out. Other metalssuch as copper, aluminium, &c.- may be used where the character of the work or the kind of material used require absolute permanence and security against any eifect whatever from oxidation or decay.

The essential features of my invention consist in the novel forms given the metal strips to adapt them for use and secure the highest efficiency in accomplishing the desired objects, as will be hereinafter described, and which are illustrated by the accompanying drawings, in which Figure 1 is a top plan View and a longitudinal vertical plan view of one edge of a wall-tie formed according to my invention and adapted for use in bonding either solid or hollow walls composed of either brick or stone or other similar material the units of which are connected together by mortar or cement filled joints. Fig. 2 represents a top plan view with vertical edge view of my improved walltie, showing a modified form of the same, adapting it for use in bonding veneer walls,

moisture is precipitated.

by having a portion thereofbent up at right angle.

Like numerals refer to and indicate like parts or features of construction throughout the several views.

In Fig. 1 at or near the center of the strip forming the tie is provided the opening 1, which is so formed that the metal immediately surrounding the opening is given a bur projectingdown ward somewhat below the surface of under side of the strip. When the tie is used for bonding hollow walls, this opening serves as a drip, through or from which When used in solid walls, the projecting bur adds somewhat to the grip or-resistance of the tie against moving. The reference-numeral 2 indicates the radially-arranged corrugations or ribs whereby the tie is given uneven surfaces which present resistance in diiferent directions, and 11 indicates the burs, projecting-in opposite directions from the fiat plane of the strip, where- 1 by additional resistance against pulling out of the strip is secured. These burs being formed by swaging up the metal around the openings present walls of resistance in all directions, and the mortar or cement passing through, filling, and hardening in said opennail or bolt to the interior section of wood or.

steel, thereby securely binding together the two sections of aveneer or composite wall. By this modification the tie becomes a complete device, adapted for use without extra labor of the workman in bending it down, which frequently forms an imperfect bedding in the mortar or disturbs the coherence of the mortar in its first action of setting. These considerationsextra labor of the workman, imperfect embedding in the mortar, and disturbance of the mortar, or especially quicksetting cement while in its first action of uniting with the brick or stoneare thought to be of such importance as to make this modification both useful and novel.

Having thus described the various novel forms devised to give efficiency to my invention and adapt it for use in accomplishing the proposed results, the reasons for such forms will be more clearly apparent by considering the requirements to be met in supplying a metal wall-tie.

In building construction Where the walls are of brick or stone the best results are secured by bringing the individual blocks of material as closely in contact as possible, thus forming very thin joints between the units of the material to .be filled by the mortar or cement which unites them into the solid mass. To meet this condition and adapt it for use in joints where the minimum of cement or mortar is used, while at the same time have it of such form that it may be used without regard to the'size of the joint, my invention is formed of thin flat strips of metal in which corrugations and burs project from the surface in opposite directions, and these projections are so arranged that they offer resistanoe in all directions. Being bedded in the mortar or cement in the joint while it is in a plastic condition, when it sets or hardens the tie is firmly secured in place and extending across the vertical joints in solid walls or the dead-air space in hollow walls bonds or ties together all the parts of the wall more firmly, at less cost, and with less labor than were the bonding done by chipping and using brick or other material of which the wall is composed for bonding.

It may thus be seen that the essential fea tures of my invention adapt it for use in walls of stone or brick alone or walls composed partly of brick and partly of stone, solid 1. A wall-tie composed of a strip of any suit- I able metal, and having uneven surfaces projecting in opposite directions from its flat sides, such projections being formed by corrugations or ribs,2,arranged radially,whereby they may ofier resistance in different directions, substantially as and for the purposes shown and described.

2. AWall-tie composed ofastrip of any suitable metal, and being provided with uneven surfaces, such uneven surfaces being produced by burs projecting in opposite directions from its fiat sides, the openings around which such burs are formed, and the projections of theburs, offering walls of resistance in all directions, substantially as and for the purposes shown and described.

3. In a wall-tie composed of a strip of any suitable metal, and having uneven surfaces produced by radially-arranged corrugations or ribs, whereby it is held in the mortar-joint along one portion of its surface, the bending up of the other portion of the same at a right angle, 12, and providing an opening in said bent-up portion, whereby the tie is adapted to be secured to wood or steel inner structures of composite or veneer walls, substantially in the manner and for the purposes as shown and described.

In testimony whereof I affix my, signature in presence of two Witnesses.

ROBERT C. TAFT.

Witnesses:

J. LEE KNIGHT, THOMAS DAVIS. 

